WE'VE MOVED! Democratic Convention Watch is now at http://www.DemocraticConventionWatch.com
Georgia is tracking their early vote online. So far, almost half a million people have voted, 37% of them African-American. The highest raw number of voters came from Dekalb County, second is Fulton County. Dekalb is suburban to Atlanta, while the city itself is in Fulton County.
I remember reading (I cannot remember where, but I'm sure one of you will know) that the polling models for Georgia assumed an AA turnout of under 30%.